Surgical irrigating apparatus.



L. J. STILLING. SURGIOAL IRRIGATING APPARATUS. APPLICATION FILED AUG. 1, 1913.

1 1 12, 1 68. Patented Sept. 29, 1914.

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'LQUI S J. STILLING, OF NEWARK, NEW JERSEY.

SURGICAL IRRIGATING APPARATUS.

Specification of Letters Patent.

2" all whom it may concern Be it known that 1, Louis J. STILLING, a citizen of the United States, residing at 5 Newark, in the countyof Essex and State of New Jersey, have invented certain Improvements in Sur ical irrigating Apparatus, of which the fol owing is a specification.

The objects of this invention are to prevent back flow of gas in an apparatus of this sort to and through the supply of medicinal vpreparation being administered to the patient; to trap and vent such gas before it has come in contact with the supply; to thus keep the medicinal preparation unchanged and uncontaminated; to provide means for doing this automatically and without the attention of the nurse; to provide such a device which may be readily cleaned and main tained in a sanitary condition; to secure simplicity of construction and o eration, and to obtain other advantages an results as may be brought out in the following description.

Referring to the accompanying drawings, in which li e numerals of reference indicate 1- the same parts throughout the several views,

, cle tor the medicinal preparation or fluid 2,

i said receptacle preferably being provided tit) with only a single opening 6, and that at its bottom. By inverting the receptacle, the same may be filled and the opening 6 closed by any suitable means, such as a plug or cork 7. Passing through this cork 7 is a tube 8 which extends upwardly within the receptaole adjacent to its top and will admit air to compensate for such fluid as may be drawn out and maintain a constant atmospheric pressure on top of the fluid. so the same will tlow steadily and'even, i

The fluid is adapted to be drawn ofi or tlow through a second tube 9 which projects through the cork and terminates at the bottom of the receptacle, The lower end of this tube is shown as'provided with a knob or nipple-shaped extremity over which a rubher tube 10 may be afixed, the lower end of this rubber tube being similarlysecured to the nippled upper end 11 of my improved flow device 12.

A neck 13 extending centrally upward from a transverse valve leconnects the same with the nipple or upper end 11 above referred to, and a depending neck 15 below said valve in axial alinement with the upper neck 13 extends at its lower portion into a sight chamber 16; This sight chamber 16 contracts at its lower end and provides a lower nipple 17 onto which may be slipped a rubber or other flexible tube 18 into the lower end of which may be inserted any surgical implement or the like 19 which the exigencies of any particular atient may require. Preferably the cham er 16 istapered, as shown, at its upper and lower ends to prevent the lodgment or accumulation of gas or the like and facilitate its u passage to vent means hereinafter more ful y described.

The valve 1a: preferably comprises a transverse frusto-conical valve seat 20 in which seats a correspondingly frusto-conical revoluble member 21 having a knob or other suitable means 22 at the larger end of itself to project outside of the seat and providing means whereby said revoluble member may be turned. A passage 23 transversely through the revoluble member adapted to be brought, by twisting said member, into registration and axial coincidence with interior longitudinal passages 24:,' 25 of the upper and lower necks 13, 15, respectively, admits the flow therethrough when desired, and by turning said member partly or entirely out of registration with the stationary passages 2t, 2b the flow may thereby be regulated or entirely discontinued at will.

its a means for retaining the revoluble member seated, I provide an exterior bead 26 at the larger end of the valve seat. A bow clip 27 placed on the valve adjacent said bead 26 is prevented from slipping off thereby and is provided with laterally extending spring lingers 28, 28 extending over said bead and at either side of the revoluble member, engaging an outwardly facing shoulder 39 therein and by virtue of their resiliency pressing against the same and normally forcing said revoluble member inwardly, "thus causing it to seat.

Within the sight chamber 16 at its upper end, the passage 25 through the neck 15 thereat contracts into a nozzle 29 which extends downwardly within the chamber and Patented Sept. 29, 1914 hpplication filed August 1, 1913. Serial No. 782,403.

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terminates intermediate of its ends and spaced a distance from the side wall there of. The lower opening of said nozzle 29 is preferably comparatively restricted as shown, so that the fluid passing therethrough may be-caused to leave the nozzle in drops when so desired and also in order that gases entering the sight chamber from below will not readily enter said passage to escape through the fluid contained in the receptacle.

In order to provide for the escape of such gases, I provide above the level of the nozzle opening 30 a vent 31 through the exterior wall of the sight chamber 16. As shown, it is preferable to position this vent at theextreme upper end of the chamber, to elimin'ateany pockets in which undesirable gases may lodge and avoid as far as possible the likelihood of the fluid finding an exit therethrough. It is to be understood that the removal of these gases is an important feature of the present invention, as to allow them to pass through the medicinal preparation in the receptacle tends to contaminate or abate the preparation by virtue of the solubility of the gases therein or their power to chemically combine with the preparation. Both of these ill effects are largely eliminated by my vent as shown. Saidvent, furthermore, is preferably curved as to open to the atmosphere toward the side, and thus settling dust and the hire will notenter into nor stop the passage.

'- It will be obvious that the operation of my improved apparatus maintains the fluid under perfect control and observation at all times, the several parts are readily accessible and may be easily cleanedand kept sanitary, and contamination during use is eliminated. It is to be understood, however, in

describing the various parts of this particulardisclosur'e herein given as illustrative of my invention, I do not wish to be understood as limiting myself thereto except as may be required by the following claims when construed in the light of the prior art.

' I Having thus described the invention, what I claim isv '1. l he hereindescribed surgical irrigating feed device, comprising a tubular body portion adapted at its upper and lower ends to connect with inlet and outlet pipes and having an upper neck portion and a lower enlarged c amber, a nozzle forming a continuation of said neck and depending into said chamber, the tip of said nozzle being at a distance from the bottomof the chamher so that the level of liquid is below it and T the wallof the body portion having a vent opening at the top of the chamber outside the nozzle, and a. controlling valve in said anares neck, whereby the flow of liquid through the feed device may be observed and any backflow of gas into the chamber will be trapped and discharged into the atmosphere.

2. The hereindescribed surgical irrigating feed device, comprising a tubular body portion adapted at its upper and lower extremities to receive rubber tubing and having an upper neck portion and a lower enlarged chamber inwardly tapered at its top and bottom, a nozzle forming a continuation of said neck and depending into said chamber from its tapered upward part, the tip of said nozzle being at a distance from the bottom of the chamber so' that the level of liquid is below it and the wall of the body portion having a vent opening at the top of the contracting space between the nozzle and the wall of the chamber, and a controlling valve in said neck, whereby the flow of liquid through the feed device may be observed and any back-flow of gas into the chamber will be trapped and discharged into the atmosphere.

3'. The hereindescribed surgical irrigating feed device, comprising a tubular body portion adapted at its upper and lower ends to connect with inlet and outlet pipes and having an upper neck portion and a lower enlarged chamber with a nozzle forming a continuation of said neck and depending into said chamber, the tip of said nozzle being at a distance from the bottom of the chamher so that the level of liquid is below it and the wall of the body portion having a vent opening at the top of the chamber outside the nozzle, whereby any back-flow of gas into the chamber will be trapped and discharged into the atmosphere.

4.- The hereindescribed surgical irrigating feed device, comprising a tubular body portion adapted at its upper and lower extremities to receive rubber tubing and having an upper neck portion and a lower enlarged chamber inwardly tapered at its top and bottom with a nozzle forming a continuation LOUIS J. STILLING.

Witnesses HOWARD P. KING,

JANET A. AYERS.

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